This article is brought to you by Innomotics.
In the annals of industrial history, few innovations have demonstrated such remarkable staying power as the dynamo-electric principle. Discovered by Werner von Siemens in 1866, this groundbreaking principle remains fundamental to modern electrical engineering more than a century and a half later – and continues to shape the technology portfolio of Innomotics, a globally leading provider of electric motors and large drive systems. What began as a breakthrough in electromechanical energy conversion has evolved into a cornerstone of global industry – powering everything from brewery operations in Qingdao to high-voltage drive systems in petrochemical plants.
The year 1866 marked a decisive turning point, not only in the broader arc of industrial transformation but specifically in the realm of electric motion. At a time when Europe was entering a new phase of industrial transformation, Werner von Siemens pioneered the dynamo-electric principle – a breakthrough that enabled electric machines to generate their own magnetic field through self-excitation. This innovation transformed electric machines from laboratory curiosities into practical power sources, enabling the widespread electrification of industry and infrastructure that defined the late 19th century.
This electric motor from Innomotics was installed in the early 1900s at the historic Tsingtao Brewery in China and supported production processes for more than 90 years, operating continuously under industrial conditions.Innomotics
The principle itself is elegantly simple: an iron core generates a stable magnetic field; a rotating coil is placed within this field; movement in the magnetic field induces an electric current; part of this current strengthens the magnetic field; and electrical energy is continuously converted into motion. This self-reinforcing cycle made efficient and reliable electric motion possible – and it remains the foundation of modern motors today.
More than 160 years later, the same fundamental idea continues to power industrial applications around the world. Millions of motors operate reliably under demanding conditions, keeping production running across generations. The dynamo-electric principle made it possible for electric machines to convert electrical energy into motion (and motion back into electrical energy), creating the technological foundation for modern electric motors and drive systems.
Active Vibration Control System (AVCS) enhances stability and reliability by actively reducing vibrations.Innomotics
Perhaps no example illustrates this longevity better than the electric motor from Innomotics at the historic Tsingtao Brewery in China. Installed in the early 1900s during the early electrification of industrial brewing, this motor supported production processes for more than 90 years, operating continuously under industrial conditions. It became a powerful example of long-term reliability in real-world applications – a testament to how engineering ensures reliable motion across decades.
Continuity, however, does not mean stagnation. Sixteen decades after the original breakthrough, innovations continue to emerge that build upon this proven foundation. Two recent developments – the Active Vibration Control System (AVCS) and oil-lubricated rolling bearings (OLRB) – carry this spirit of innovation and ingenuity forward, a commitment that has been recognized with the German Innovation Award.
Innomotics’ patented Oil-Lubricated Rolling Bearing (OLRB) technology enhances reliability and reduces maintenance requirements.Innomotics
AVCS helps optimize high-voltage motor performance by actively decoupling motors from their foundations to reduce vibration issues. OLRB helps prevent rolling bearing failures from the start with continuous lubrication, supporting higher availability, less downtime, and long-term cost savings. These innovations demonstrate how the basic principle of 1866 can be enhanced through modern engineering to meet contemporary demands for reliability and efficiency.
For three decades, with over 25,000 units driving performance globally, Innomotics’ Perfect Harmony GH180 medium-voltage drive platform has supported reliable operation across industries. Its modular architecture enables efficient power control, high availability, and long-term performance. With thousands of installations worldwide, Perfect Harmony GH180 continues to build on a proven technological foundation, minimizing downtime and ensuring stable production.
Keeping critical motors running requires the right expertise and innovation spirit throughout the entire lifecycle. With Innomotics Customer Services, operators and plant managers gain the insights they need to maintain reliability and optimize maintenance strategies. Winding Lifetime Analysis (WLA) combines operating history, machine measurements, and physics-based modeling to assess the condition of the winding insulation and estimate its remaining useful lifetime. This enables informed maintenance decisions, reduces uncertainty, and helps minimize the risk of unplanned downtime.
The Perfect Harmony GH180 delivers efficient, reliable and flexible medium-voltage drive performance.Innomotics
What began as a breakthrough in 1866 still brings its value to modern industry. The dynamo-electric principle made efficient and reliable electric motion possible – and it remains the foundation of modern motors today.
As industries worldwide grapple with challenges ranging from energy efficiency to operational resilience, this 160-year-old principle continues to prove its relevance.
Video: Innomotics
For plant managers and engineers seeking long-term performance in demanding applications, the message is clear: the foundation laid in the 19th century remains as solid as ever. What has changed are the tools and services built upon it – from vibration control systems to predictive analytics – all designed to extract maximum value from a principle that has, quite literally, powered the modern world for a century and a half.
Innomotics, carrying forward a legacy that spans the full arc of this history, continues to move industry forward with innovations that create real progress. The dynamo-electric principle may be 160 years old, but as the company’s portfolio demonstrates, it is far from obsolete. It is, in every sense of the word, still running.
Discover how Innomotics is driving the future of industry: https://www.innomotics.com/hub/en/company/about-innomotics/dynamo-electric-principle
